except it doesn't have -- they don't have defined boundaries. in southeastern michigan, our heritage area, which is called motor city's national heritage area, is telling the automotive history of our area. it's a consortium of auto sites all over southeastern michigan. our museum is part of the automotive national heritage area. the house in gross pointe's part of the auto heritage area. the dodge house at meadowbrook hall is part of the auto heritage area. so we're a collection of sites, and we try to market each other to tell visitors to our area places that they can go to view our automotive history of our area. the industry has downtimes, but it also has uptimes. and collectively, the auto industry has been a very important part of the economy of our region. >> throughout the weekend, american history tv is featuring ann arbor, michigan. our local content vehicles recently traveled there to learn about its rich history. learn more about ann arbor and c-span's local content vehicles at c-span.org/localcontent. you're watching american history tv, all weekend, every weekend an c-span3.